Pipe-wrench



(No Model.)

'W. OANN.

PIPE WRENCH.

No. 429,676. Patented June 10, 1890.

Wifgzsses I lga zgf'or 9 133M400 OAH Days, 7% l m Cam/n.

/ l V I UNITED STATES PATENT OFFICE.

VILLIAM UANN, OF ATKINSON, ILLINOIS.

PIPE-WRENCH.

SPECIFICATION forming part of Letters Patent No. 429,676, dated June 10,1890.

Application filed February 21, 1890- Serial No. 341,255. (No model.)

To all whom it may concern:

Be it known that I, WVILLIAM OANN, a citizen of the United States,residing at Atkinson, in the county of Henry and State of Illinois, haveinvented a new and useful PipetYVrench, of which the following is aspecifica- This invention has relation to pipe and rod tongs; and theobjects and advantages of the invention, together with the novelfeatures thereof, will hereinafter appear, and be particularly pointedout in the claims.

Referring to the drawings, Figure 1 is a side elevation of tongsconstructed in accordance with my invention, the same being in an openposition. Fig. 2 is a similar-view, the tongs closed. Fig. 3 is a detailin perspective of the bit.

Like numerals of reference indicate like parts in all the figures of thedrawings.

The tongs comprise two pivoted members 1 and 2, the former being thestationary member and the latter being the movable member, said membershaving their inner faces recessed to receive each other and pivotallyconnected bythe pivot 3, below which they are extended to formoperating-handles 4. Beyond the pivot the member 1 is thickened andterminates at its extremity in a curved head 5, the inner edge of whichis semi-octagonal, as shown at 6, and below said head said member istransversely recessed, as at 7, the bottom of the recess beingpreferably slightly rounded or curved, as at 8, forming a cam-surface.The opposite pivoted mem her 2 is projected laterally, as at 9, at apoint beyond its pivot, and is provided with a continuation 10, whichextends upward to near tlellliead 5, and at its extremity is slotted, asa 12 represents the bit, the front lower corner of which is reduced, asat 13, and mounted in the slot 11 of the extension 10, and through thewalls of the slot and the reduced portion there is inserted a pivot-bolt14. The upper edge of the bit is provided with a series offorwardly-disposed teeth 15, and the rear end of said bit is tapered ina curve-like manner, as shown at 16, and mounted in the slot 7 of theopposite member, the curved portion 16 resting upon the curved bottom 8of the slot. To the front of the extension 10 there is secured a flatspring 17, the upper free end of which extends beyond the extension andrests against the front end of the bit 12 above the pivot 14, so thatthe same is held at the lower end of the slot 7 and thetwo curved faces16 and 8 in sliding contact.

By separating the handles 4L it will be apparent that the sliding bit 12will be withdrawn from the head 5, and the tongs may be introduced overa pipe or rod. Now by closing the handles upon or toward each other itwill be apparent that the curved faces 16 and 8 will serve to raise thebit or draw the same toward the head 5, and in this mannera ready gripmay be taken upon a pipe or rod and as readily loosened to procure afresh grip in the operation of wrenching the rod.

Having thus described my invention, what I claim is 1. The combination,with the stationary member terminating at its upper end in the angularhead 5 and provided below the same with a recess 7, of the oppositemember pivoted, as at 3, to the stationary member, projected laterallyat one side of the pivot and provided with an extension terminatingshort of the head of the opposite member, and the transversely-disposedbit having its front end pivoted to the extension of the pivoted member,its upper edge provided with teeth and its rear end reduced and mountedfor reciprocation in the recess, substantially as specified.

2. The combination, with the stationary member 1, of the pivotedv member2, each reduced at their inner faces and pivotally connected, as at 3,the stationary member being continued beyond its pivot and terminatingin an angularly-recessed head provided below said head with a recess,and the opposite member extended laterally above its pivot and providedwith an extension, and a transversely-disposed bit pivoted in the upperend of the said extension and reduced at its opposite end and mounted inthe said recess of the opposite section, substantially as specified.

3. The section 1, having the transverse recess 7, provided with thecurved bottom 8, and curved head 5, provided With a semi-octagonalrecess 6, in combination with the sec-- tion 2, pivoted, as at 3, to thesection 1, and projected, as at 9, to one side of its pivot and havingthe extension 10, slotted, as at 11, the

bit 12, reduced, as at 13, and pivoted, as at ii, within the slot, andhaving its upper edge toothed, as at 15, and its rear end reduced, asablG, and mounted for sliding upon the curved bottom 8 of the recess 7,and the Hat spring 17, the lower end of which is secured to theextension 10, and the upper end of which bears against the front end ofthe bit, snhstantially as specified.

4. In a wrench, the stationary member having the head 5 and providedwith the transverse opening having the cam-surface 8, combined with thepivoted member 2, provided my own I have hereto aiiixed my signature 20in presence of two witnesses.

WILLIAM CANN. Witnesses:

J'nssn STINER, J. L. LAMONT.

